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City of Santa Ana <br />3.10 Hydrology and Water Quality <br />Would the project: <br />California Environmental Quality Act <br />Initial Study/Mitigated Negative Declaration <br />Less Than <br />Potentially <br />Significant <br />Less Than <br />No <br />Environmental Issue <br />Significant <br />with <br />Significant <br />Impact <br />Impact <br />Mitigation <br />Impact <br />Incorporated <br />a) Violate any water quality standards or waste <br />discharge requirements or otherwise substantially <br />X <br />degrade surface or ground water quality? <br />b) Substantially decrease groundwater supplies or <br />interfere substantially with groundwater recharge <br />such that the project may impede sustainable <br />X <br />groundwater management of the basin? <br />c) Substantially alter the existing drainage pattern <br />of the site or area, including through the alteration <br />of the course of a stream or river or through the <br />addition of impervious surfaces, in a manner which <br />would: <br />i) result in substantial erosion or siltation on- or off - <br />site; <br />X <br />ii) substantially increase the rate or amount of <br />surface runoff in a manner which would result in <br />X <br />flooding on- or offsite; <br />iii) create or contribute runoff water which would <br />exceed the capacity of existing or planned <br />stormwater drainage systems or provide substantial <br />X <br />additional sources of polluted runoff; or <br />iv) impede or redirect flood flows? <br />X <br />d) In flood hazard, tsunami, or seiche zones, risk <br />release of pollutants due to project inundation? <br />X <br />e) Conflict with or obstruct implementation of a <br />water quality control plan or sustainable <br />X <br />groundwater management plan? <br />Discussion: <br />a) The proposed Project is not expected to significantly violate water quality standards, waste discharge <br />requirements, or surface and groundwater quality. Construction activities will comply with <br />regulations set forth by the Federal Clean Water Act, the Santa Ana Regional Water Quality Control <br />Board (SARWQCB), Orange County, the City of Santa Ana, and other relevant water quality control <br />